RELATED APPLICATIONThis application is a continuation-in-part application under MPEP 201.08 and 37 C.F.R. §1.53 of pending application Ser. No. 08/608,658, filed Feb. 29, 1996.
TECHNICAL FIELDThis invention relates generally to identification documents and their method of manufacture, and more particularly, to identification documents and a method of placing personalized data (including text and image) in an identification document such as a passport or identification card.
BACKGROUND OF THE INVENTIONThere are usually two types of printing on identification cards and passports. The first type of printing involves background printing that includes reference and security information. For example, the reference information may include the issuing agency as well as numerical data. The security information may be in the form of a watermark, an encoded magnetic strip, numerical sequences, a holographic image, etc. The second type of printing includes "personalized data" or "variable information" such as photographic, fingerprint, signature, name, address, etc.
Personalized text and image data is placed into most current passports by printing text directly into the booklet on a data receiving page with a daisy wheel-like printer and then affixing a photograph of the passport holder to the data page. This produces a passport that is vulnerable to photo-substitution. According to many forensic experts, photo-substitution accounts for over seventy percent of the incidents of passport tampering and alteration. Recent improvements in digital printing technology offer a potential method for countering this photo-substitution threat. New digital full-color printers produce near photographic quality images and passports produced with this technology offer enhanced levels of security because the images are considerably more difficult to remove and alter as compared to the photograph counterpart.
Several means of placing the variable text and image data into the passport booklet have been proposed in the past few years. One technique is based on an insert page concept. A sheet of security paper such as that used to make currency or a special synthetic paper such as Teslin™ is pre-printed with an appropriate passport security background. The finished sheet is die cut to the dimensions of the passport creating an insert data page. This data page is positioned into the passport and then attached to the booklet via a thermal lamination process. A security laminate, which is sewn into the booklet during the fabrication process, holds the data page in the document. While this technique does provide a method of placing the variable text and color image data into the passport, it also introduces a new point of vulnerability. The entire data page can be removed from the booklet by attacking the security laminate.
SUMMARY OF THE INVENTIONIn accordance with the present invention, an identification document, e.g. a passport, is prepared by a method including printing personalized data directly onto a silicone release coat of the release sheet using a printer having a maximum and minimum fusing temperature, wherein the fusing temperature of the printer is controlled such that the maximum fusing temperature is below the point that the print toner will become brittle when the printed sheet is flexed and such that the minimum fusing temperature is above the point required to adequately fuse the toner to the silicon release coat. The release sheet is positioned with the side containing fused toner adjacent to the receiving surface of a security laminate. Next, the release sheet and the security laminate are passed through a laminator thereby transferring the personalized data to the receiving surface of the security laminate. Following lamination, the release sheet is removed leaving the personalized data on the security laminate.
The present invention offers enhanced levels of passport security over previous methods because all of the primary components of the document including the security laminate and the data receiving page are sewn into the passport booklet during fabrication rather than being inserted when the variable text and data are added. The overall security of the document is greatly enhanced because neither the laminate nor the data receiving page can be removed from the passport booklet without cutting the booklet apart.
BRIEF DESCRIPTION OF THE DRAWINGSA more complete understanding of the present invention may be had by reference to the following Detailed Description when taken in conjunction with the accompanying drawings wherein:
FIG. 1 is a perspective view of a typical prior art passport booklet;
FIG. 2 is an enlarged partial side section view of a security laminate page of the prior art passport booklet of FIG. 1;
FIG. 3 is a perspective view of an identification page of a passport booklet constructed according to a first embodiment of the present invention;
FIG. 4 is a flow chart showing the steps of the method of the present invention;
FIG. 5 is a plan view of a release sheet of the present invention after printing with personalized data for four separate individuals;
FIG. 6 is a plan view showing an alignment of the release sheet just prior to transfer of personalized information to the identification page;
FIG. 7 is a side view of the identification page of the passport booklet of FIG. 3;
FIG. 8 is an enlarged partial side view section of a security laminate identification page of the passport booklet of FIG. 3;
FIG. 9 is a side view of a passport booklet constructed according to a second embodiment of the method of the present invention;
FIG. 10 is a side view of a passport booklet constructed according to a third embodiment of the method of the present invention;
FIG. 11 is a side view of a passport booklet constructed according to a fourth embodiment of the method of the present invention;
FIGS. 12A and 12B are side section views of an identification card constructed according to the present invention;
FIG. 13 is a side section view of an alternate identification card constructed according to an alternate method of the present invention; and
FIG. 14 is a side section view of an apparatus for constructing the identification card of FIG. 13.
DETAILED DESCRIPTION OF THE INVENTIONReference is now made to the Drawings wherein like reference characters denote like or similar parts throughout the 14 FIGURES. Referring to FIG. 1, therein is illustrated a currenttypical passport booklet 10. Thecurrent passport 10 configuration includes a data receiving page 80, usually of security paper affixed to the inside of thefront cover 20, adie cut photograph 60 affixed to the data receiving page 80 and the variable text data 70 printed directly onto the data receiving page 80. Asecurity laminate 30 is sewn into thepassport booklet 10 to protect the document against wear and information substitution. After printing personalized data on the data receiving page 80 and attaching thephotograph 60 to the data receiving page 80, thesecurity laminate 30 is sealed to the receiving page 80 by passing thepassport booklet 10 through a passport laminator. FIG. 2 illustrates that the typical security laminate includes a first layer of polyethylene based adhesive 32, a polyester cover 34 and a primer interface 36.
Although the description of the invention will proceed to make reference to a passport booklet, it should be understood that the invention relates to identification documents and the method of making such documents.
Referring now to FIG. 3, the present invention offers enhanced levels of security over other methods because all of the primary components of the passport booklet 100, including the security laminate 130 and the data receiving page 180, are sewn into the passport booklet during fabrication rather than being inserted when the personalized data is added. It is understood that sewing is not the only acceptable method of affixing the elements of the passport booklet 100, any method of affixing that provides a tamper resistant means preventing the removal or replacement of pages in the passport booklet 100 is satisfactory.
The steps employed in the method of the present invention are illustrated in FIG. 4 and described as follows. The pre-sewn passport booklet 100 herein described above and illustrated in FIG. 3 is provided in Step S1. In Step S2, formatted personalized data to be included in our identification page is input to a computer by various methods including using a scanning CCD array to read a signature or fingerprints, a computer keyboard for textual data, a scanner for scanning a photograph, a frame grabber and video camera, and/or a digital camera. The data is digitized and downloaded to a printer.
The personalized data is printed in positive image during Step S3 directly on a silicone release coat of a release sheet 150 (see FIG. 5). In one embodiment of the present invention, a black and white laser printer, such as the Hewlett-Packard Laserjet 4, was used to print black text and gray-scaled images while a color laser printer, such as the Ricoh NC5006, was used to print colored text and images. The Ricoh NC5006 prints color images and data directly onto the silicon release coat at the normal fuser roller pressures but improved quality images are achieved by slightly reducing the fuser roller temperature. Normal fusing temperatures cause the color laser toner to become brittle after fusing. This means that the toner will crack when the printed sheet is bent or flexed.
To date good results have been achieved with a WC-40 STICK-NOT™ S-Premium silicon release sheet manufactured by Release International with a basis weight of 40.0 lbs./ream. The technical data for this release paper is provided below:
______________________________________PHYSICAL TEST DATA (Typical Average Values)Characteristic Test Method Nominal Value Nominal Value______________________________________Release (12"/min) UM-502 5015 gm/in 5-15 gm/25mm(1200"/min) 60-90 gm/in 60-90 gm/25mmBasis weight TAPPI T-410 40.0 lbs/ream 65 g/m.sup.2Caliper TAPPI T-411 2.75 mils 70 micronsTear Strength CD TAPPI T-414 53grams 53 gramsTensile Strength TAPPI T-404 23 lbs/in 4.0 kN/mMDBrightness TAPPI T-452 82.0 nm 82.0 nmMG Sheffield UM-518 2.75 SFU 2.75 SFUSmoothness______________________________________
The best quality color images were achieved with this release sheet by reducing the fuser roller temperature to ˜150° C. on the Ricoh NC5006 printer. Fusing temperatures that are too high will cause the toner to become brittle and crack when the sheet is flexed and temperatures that are too low do not adequately fuse the color toner to the release surface. However, at the proper fuser roller temperature setting, the fused information can be touched and lightly rubbed without smearing or destroying the text or images. The proper fuser temperature setting is dependent upon the thermal mass and, therefore, the basis weight of the release sheet.
FIG. 5 illustrates an example configuration of a printed silicon release sheet 150 showing the layout of the variable text and image data. In this configuration, the release sheet 150 is standard letter size of 81/2"×11". This size is adequate to produce four individual passport documents 152, 154, 156, 158. The sheet 150 has perforated lines 151 so that it can be easily torn into the four equal quadrants 152, 154, 156, and 158 after the printing process. Personalized data including photographic image 160, textual image 170 and OCR-B machine readable text 190 are illustrated as printed on the release sheet.
Returning to FIG. 3 and 4 in Step S4, one of the quarter sheets, for illustrative purposes sheet 152, is placed between the data receiving sheet 180 and the security laminate 130. The security laminate 130 is positioned so that the receiving surface faces the data receiving sheet 180. The release sheet 152 is positioned so that the personalized information is facing the receiving surface of the security laminate 130. When Teslin™ is used as the data receiving sheet 180, the receiving surface of the security laminate 130 will include an adhesive layer. However, it is understood that additional materials may be used for the data receiving sheet 180, including but not limited to fusible polymeric materials such as vinyl. If a fusible polymeric material is used for data receiving sheet 180 the security laminate 130 is a fusible polymeric data receiving sheet containing no adhesive layer.
Referring to FIGS. 5 and 6, alignment guides 153 are printed on each quarter sheet so that the text data 170 and image data 160 are positioned properly relative to the edges of the passport booklet 100.
The release sheet 150,including security laminate 130, is passed during Step 5S through a conventional laminator such as a 1000PLA from Thermal Laminating Corporation. The heaters are gapped to the approximate thickness of the passport booklet 100 and the temperature is adjusted to an interface temperature of 125° C. for typical polyethylene-based adhesives. The required interface temperature is dependent upon the adhesive formulation of the data receiving sheet 180 or in alternate embodiments the softening temperature of the fusible polymeric data receiving sheet. The corresponding temperature setting on the laminator is dependent upon the thermal mass of the passport booklet 100 and, therefore, the thickness of the passport booklet 100 as well as the speed of the laminator. The laminator transfers the personalized data from the release sheet 150 to the receiving surface of the adjacent security laminate 130. The personalized data, including image and all of the text, is transferred to the receiving surface in a single pass rather than being printed directly to the laminate via a three-color or four-color print process.
While the donor release sheet 150 and security laminate 130 are still hot from the initial pass through the laminator, the release sheet 150 is peeled in Step S6 from the security laminate 130 and discarded.
After the image transfer is completed and the release sheet 150 is removed from the document, the passport booklet 100 is sent through the laminator a second time in Step S7 to seal the security laminate 130 to the fusible polymeric data receiving sheet 180. In this embodiment, the data receiving sheet 180 is attached to the inside of the cover 120.
The lamination temperature of the second pass may be different from the first pass depending on characteristics of the material used for the data receiving sheet 180 and security laminate 130. It is to be understood that as discussed in this application, the data receiving sheet 180, represents an identification document that may be located in the passport booklet 100 or alternatively in other types of identification documents. Additionally, the data receiving sheet 180 may be a completely blank security coded paper or contain pre-printed standard form information, leaving only blank space for the personalized data to be affixed. If the data receiving sheet is completely blank then the standard form information is downloaded to the printer concurrently with the personalized data and affixed concurrently as heretofore described with regard to the personalized data.
The method of the present invention is applicable to adhesive based security laminates 130 and non-adhesive based laminates with softening temperatures in appropriate ranges. Suitable adhesive based security laminates 130 include plain polyethylene hot melt adhesive as well as any number of copolymers including EAA (ethylene/acrylic acid copolymer), EEA (ethylene/ethyl acrylate copolymer), EMA (ethylene/acrylate copolymer), EVA (ethylene/vinyl acetate copolymer), and pressure sensitive adhesives (PSA). Non-adhesive based security laminates include vinyls, PETG (polyester with a glycol additive), amorphous polyesters, or any transparent polymeric material with an appropriate softening temperature.
FIGS. 7-11 illustrate cross sections of various possible identification document configurations. FIGS. 7 and 8 illustrate the configuration as previously described with regard to FIG. 3, just prior to the final lamination Step S7. FIGS. 7 and 8 illustrate the process as the silicon-coated release sheet 150 is removed from the security laminate 130. The final configuration of this example will result in the security laminate 130 being affixed to the data receiving sheet 180 that is affixed to the inside of the front cover 120.
FIG. 8 illustrates the silicon coated release sheet 150, printer toner 111 (consisting of approximately 90-95% polyester and 5-10% pigment), a polyethylene based copolymer adhesive 112, and a polyester security laminate cover 113.
FIG. 9 illustrates a second embodiment of the present invention, depicted at the same stage of the assembly as shown in FIG. 7 and 8. In this configuration, the security laminate 230 is sealed to an inner data receiving sheet 280 not affixed to the inside of the front cover 220 of the passport booklet 200. The location and side orientation of the data receiving sheet 280 is determined by the placement of the security laminate 230 during the fabrication process.
FIG. 10 illustrates a third embodiment of the present invention. In this embodiment, the data receiving sheet 380 is sealed between two opposing layers of security laminates 330. Again, the location and side orientation of the data receiving sheet 380 is determined by the placement of the security laminates 330 during the fabrication.
A fourth embodiment is illustrated in FIG. 11. This embodiment does not utilize a security paper based data receiving sheet. Instead, the personalized data is transferred to a first security laminate 430 and then is sealed to a second security laminate 432. The personalized data is held in place between layers of adhesive of the opposing layers of an adhesive based security laminate 430 and 432 or is fused between opposing layers of non-adhesive based laminates.
Referring to FIGS. 12A and 12B, an additional embodiment of the present invention is applicable to identification card documents 500. As used herein, identification card may include any type of verification card including but not limited to driver's license, school identification card, credit cards, and bank automatic teller machine cards. Thepersonalized data 511 associated with an identification card 500 is printed onto arelease sheet 550 and transferred to a transparent non-adhesive backedsecurity laminate 530 receiving surface. Non-adhesive based security laminates include vinyls, PETG (polyester with a glycol additive), amorphous polyesters, or any transparent polymeric material with an appropriate softening temperature. Thetransparent security laminate 530 is then fused to adata receiving substrate 580 of polymeric material such as vinyl, PETG or amorphous polyester. This process has been demonstrated successfully on release sheets as large as 11" by 17". Eighteen to twenty-one identification cards may be accommodated on an eleven inch by seventeen inch sheet. For additional security, thetransparent security laminate 530 includessecurity identification symbols 531 pre-printed or embossed thereon.
Referring to FIG. 13 therein is disclosed an alternate embodiment of the security card of FIGS. 12A and 12B. The personalized data associated with an identification document is printed in reverse directly onto a silicon-coated release sheet 650. The printed silicon-coated release sheet 650 is positioned on adata receiving substrate 680 and passed through a laminator at an interface temperature of 125°-150° C. Thedata receiving substrate 680 includes vinyls, PETG and amorphous polyesters. When the silicon coated release sheet 650 is peeled away from thedata receiving substrate 680, laser printer toner 611 (comprising 90% to 95% polyester and 5% to 10% pigment) is left on the data receiving substrate, thereby thepersonalized image 611 is transferred to thedata receiving substrate 680.
The apparatus for transferring personalized data to thedata receiving substrate 680 is shown FIG. 14. The silicon coatedrelease sheet 550 having personalized data printed in reverse is fed through rollers 800 and 810. Heat is applied by a heater 900 and pressure is applied by compression rollers 1000 and 1010. The silicon-coated release sheet 650 is removed from thedata receiving substrate 680 by stripper rollers 1050, leaving the personalized data in a transferpositive image 611 on thedata receiving substrate 680.
Referring again to FIG. 13, a non-adhesive backedsecurity laminate 630 is positioned over thedata receiving substrate 680 containing thepersonalized data 611 and laminated to thesubstrate 680. Non-adhesive based security laminates include vinyls, PETG (polyester with a glycol additive), amorphous polyesters, or any transparent polymeric material with an appropriate softening temperature. Thesecurity laminate 630 includessecurity identification symbols 631 pre-printed or embossed thereon. It is to be understood that the technique described with regard to FIGS. 12A and 12B for constructing an identification card may also be used to transfer personalized data or an image to a vinyl substrate used for credit cards or bank debit cards. Furthermore, after personalized data is transferred to a vinyl substrate, the vinyl substrate may be vacuum molded into any shape, i.e., a cup, bowl, vase, etc.
Although the preferred and alternate embodiments of the invention have been illustrated in the accompanying Drawings and described in the foregoing Detailed Description, it will be understood that the invention is not limited to the embodiment disclosed but is capable of numerous modifications without departing from the scope of the invention as claimed.